Inductive Proximity Switches, self contained, depend on the output of an oscillator for their operation. The oscillator resonant circuit uses an open core coil to produce a concentrated high frequency electromagnetic (RF) field, which emerges from the active surface of the sensor. If a metal target (or other electrically conductive material) enters this field, eddy currents will be induced in it, causing the resonating oscillator to be damped.

Our separate sensor amplifiers allow an easy adjustment and interpretation of our capacitive sensor heads. For this purpose, both a compact comfort-amplifier and an IO-Link-amplifier for top hat rail mounting are available.

First Sensor develops and manufactures high-precision optical and opto-electronic sensor solutions from a single source and provides long term supply continuity. Available as component, module or system solution First Sensor products are an integrated part of our customers application.

module is basically comprised of a photomultiplier tube to convert light into electrical signals, a high-voltage power supply circuit, and a voltage divider circuit to distribute the optimum voltage to each dynode, all assembled into a single compact case. In addition to these basic PMT modules, Hamamatsu also provides modules having various additional functions such as signal processing, cooling and interface to PC.

Optical (Infra-Red) Proximity Switches with advanced and reliable technology for every application offer a flexible solution for automation, where other Proximity Switches can not perform. Optical Proximity Switches have distinct advantage of higher sensing distance over Inductive and Capacitive types. These can work more reliably in noisy electromagnetic field. As an Infra-red wavelength is used, it is immune to visible light interference.

A reflex, or reflective, photoelectric sensor contains a transmitter and a receiver in a single housing, and emits a pulsed, focused light beam through a polarization filter toward a distant reflector. Reflected light returns to the sensor, passing through a second filter before arriving at the receiver. When a target object interrupts the light beam, the receiver detects the reduced light intensity and triggers the sensor.

A reflex, or reflective, photoelectric sensor contains a transmitter and a receiver in a single housing, and emits a pulsed, focused light beam through a polarization filter toward a distant reflector. Reflected light returns to the sensor, passing through a second filter before arriving at the receiver. When a target object interrupts the light beam, the receiver detects the reduced light intensity and triggers the sensor.

The sensor is designed for both diffusive and in-line pumped sampling, delivering an exceptional response time and clear down. MiniPID 2 incorporates lamps of exceptional brightness and stability enabling detection of less volatile and less readily sensed compounds reliably, over an extended period of time.

This sensor detects the particle with light scattering method, using one light emitter and two light receptors, and discriminates pollen from other particles with two factors: “scattered light intensity” and “degree of polarization”.